Device for securing and tightening antiskid chains



Nov. 2U, 1923. v v 1,475,065

A. GILBERTSON I DEVICE FOR SECURING AND TIGHTENING ANTISKID CHAINS Filed Dec. 14. 1922 ze E? atented` Novi'A 20,`.i1'923.

- e -1TED s'rprrEsA 'f-AUGUSTKGILBERTSON, 0F MINNEAPOLIS, MINNESOTA.

- adjustsJ PATENT oFFIiCE.

, DEVICE FUR SECURING .AND TIGHTENING `ANI'JIISKII?? CHAINS.

-Application led December 14, 1922. Serial No. 606,938.

f To all 'wilma z't my concern:

Be 'it known that I, AUcs'r 'GILBER'rsom a citizen offtheUnitedStates, residingatV -Minneapolis', inthe county ofHennepin and State of Minnesota, have invented' certain new and useful-Improvements in Devices for Securing and Tightening Antiskidl Chains, of which the following isa speciication.

My invention'relates'to devices for securing and tightening anti-skid chains. An object is to rovide a device which will hold an anti-skid chain snugly upon the tire of motor vehicle wheels so as to eliminate rattling and striking of the chain upon the mudguard. I am aware that prior to this time, it has beenv customary to provide antiskid chains with springs tensioned across the same for this purpose. An object in particular is to providegav device which will act more directly upon 'the chain and' which can be mons readily attached and detached.

The fullobjects and advantages of my invention will appear in connection with the detailed description, and the novel features of my inventive idea will be particularly pointed out in the cl-aim. ln the accompanying drawings, Fig. 1 is a side elevational view showing a portlon of a wheel with my device applied to an antiskidchain carriedthereon. Fig. 2 is a longitudinal view of the device showing it connected to the two ends of an anti-skid chain. Fig. 3 is a'longitu'dinal sectional view of one member of the device. Fig. 4 is a side elevational viewof the other member of the device.` Fig. 5 isa view in cross section on the line 5-5 of Fig. 2.

Referring to the drawin the numeral 10 designates a tire upon w ich is ymounted a` customary anti-sld chain consisting of circular chain members `12 and cross-connecting members 14. Instead of hooking together the ends of the member 12 as is"customary I provide the following device for 7b1 securing together the ends of this circular chain member. A casing 16 has secured to one of its en-dsa hook 18 which is adapted -to be hooked toaone end of the tire cham 12.\. Rotatably mounted in the sider walls of the casing 16' near its other end as I best shown in V'F ig. 5 is a pinion 20 having a square hole' 22 centrally positioned therein.

Plvotally mounted on the casing is a pawl 24 which is normally held by a spring 26 in engagement with the teeth of the pinion 20 to prevent backward movement of the pin- 1on. A rack 28 is adapted to slide-within the lower portion .of the casi 16 and to be engaged by the teeth of the pinion 20. The outer end of this rack is formed into a hook 30 adapted to be hooked'into the other end of the tlre chain .as will be understood 'by reference to Fig. 1. The casing 16 is partly cut away, as indicated atl 32 in order that fthe pawl 24 may be readily. lifted when it is desired to disconnect the two members of the device and remove the anti-skid chain from the tire. y i

The operation and advantages of my invention will be readily understood from the foregoing description. In the use of the device, it is sufiicient to provide only one device for each anti-skid chain. The inner one of the circular chain members maybe hooked together in the customary manner and the device applied to the outer circular chain member as shown in Fig. 1. Upon sliding the rack 28 into the casing 16, the pinion 2O will he rotated and backward rotation thereof will be prevented by the pawl 24. In order to obtain the desired degree of tightness of the anti-skid chain, a crank handle H may be employed, this crank handle as may be readily understood. having a uare end rtion extending at right anges to the andle proper and this square rtion being adapted Vto fit into 'the` square ole 22 of the pinion 20. When the device is applied to one of the circular chain members 12 the corresponding chain member will be tightened also on account of the two `chain members being connected by the cross members 14. As the antiskid chain wears, it may be tightened from time to time as may be necessary by giving a partial rotation of the pinion 20. O

I claim- A device for securing and tightening antiskid chains comprising a casmg, means at one end of said easing for attachment to one by the outer enden? seid rack for attachment end of the chain, apinion rotatably mounted to the other end of the chain, said inion in said casing, means carried b said eushaving provision by means of which 1t may 10 ing for preventing said pinion rom rotutbe rotated.v

5 in 'backwerd1y, arack adapted to slide-in n testimony whereof I hereunto affix my sand casing with its teeth in engagement with signature. 'the teeth of said pinion, and' means carried AUGUST GLBERTSON. 

